Home
3 CPU Program Counter
This module contains functional safety diagnostics APIs for CPU Program counter test.
3.3 Functions
3.3.2 DIAG_CPU_Program_Counter
The Program Counter test is a functional test of the PC. The PC holds the address of the next instruction to be executed. The program counter (PC) test implements the functional tests H.2.16.5 defined by the IEC 60730 standard**. This requirement ID covers the test Subset3 to check functional correctness of all CPU core instructions/features. This API performs the functional test as follows:

Introduction
This document contains API documentation for the diagnostic tests included MPLAB® Code Configurator AVR® IEC60730 Class B Diagnostic Library.
1 Software Requirements
2 Clock Frequency Test
This module contains functional safety diagnostics APIs for Clock Frequency test.
3 CPU Program Counter
This module contains functional safety diagnostics APIs for CPU Program counter test.
- 3.1 Defines
- 3.2 Enums
- 3.3 Functions
  - 3.3.1 DIAG_CPUPCTestFunction1
    This API is allocated to GUID-CECA2CD8-4387-4B03-9E34-17187DE9452B.html and decrements the program counter test flag when called by GUID-C474E9F5-C7D3-4705-B2AC-5241A2D38975.html. This API returns back to the next instruction in the program sequence.
  - 3.3.2 DIAG_CPU_Program_Counter
    The Program Counter test is a functional test of the PC. The PC holds the address of the next instruction to be executed. The program counter (PC) test implements the functional tests H.2.16.5 defined by the IEC 60730 standard**. This requirement ID covers the test Subset3 to check functional correctness of all CPU core instructions/features. This API performs the functional test as follows:
4 CPU Registers
This module contains functional safety diagnostics APIs for CPU Registers.
5 EEPROM - 16-bit CRC
This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given EEPROM region.
6 EEPROM - 32-bit CRC
This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given EEPROM region.
7 FLASH - 16-bit CRC
This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given FLASH region.
8 FLASH - 32-bit CRC
This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given FLASH region.
9 Interrupt Frequency Test
This module contains functional safety diagnostics API for Interrupt Frequency Test.
10 SRAM - Checkerboard Algorithm
This module contains functional safety diagnostics APIs for SRAM Checkerboard Test.
11 SRAM - March C-Minus Algorithm
This module contains functional safety diagnostics APIs for SRAM March-C Minus.
12 Simple Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
13 Windowed Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
14 File List
Here is a list of all documented files with brief descriptions
15 Class List
Here is a list of all documented files with brief descriptions

3.3.2 DIAG_CPU_Program_Counter

The Program Counter test is a functional test of the PC. The PC holds the address of the next instruction to be executed. The program counter (PC) test implements the functional tests H.2.16.5 defined by the IEC 60730 standard**. This requirement ID covers the test Subset3 to check functional correctness of all CPU core instructions/features. This API performs the functional test as follows:

The Program Counter test invokes functions that are located in Flash memory at different addresses.
These functions decrement the value of the PC TestFlag
TestFlag value decrements to 0 when PC tests complete successfully.

diag_pc_status_t DIAG_CPU_Program_Counter(
    void
)

Returns


diag_pc_status_t	DIAG_CPU_PC_TEST_PASS, DIAG_CPU_PC_TEST_FAIL